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Google's Unified Approach for Creating Dynamic Charts on the Web

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Google's Unified Approach for Creating Dynamic Charts on the Web Michael Fink – Product Manager Amit Weinstein – Eng. Lead GOOGLE CHART TOOLS: GOOGLE'S UNIFIED APPROACH FOR CREATING DYNAMIC CHARTS ON THE WEB 2 Follow this talk at … http://bit.ly/99tmxi 3 Tweet patterns across day and time Google Chart Tools mission: make the world’s structured data universally accessible & useful by providing enticing visualizations Part 1: Image charts - server side rendering Part 2: Interactive charts - client side interactivity Part 3: “Under the hood” Part 4: Combining server side rendering with client side interactivity PART 1: IMAGE CHARTS 6 Image Charts chs = 500x200 cht = p3 chd = t:60,40 chl = Hello|World http://chart.apis.google.com/chart?chs=500x200&chd=t:60,40&cht=p3&chl=Hello|World Image Charts Image Charts • Step 1: image chart editor • Step 2: generate programmatically using PHP / JavaScript Rendering service… PART 2: INTERACTIVE CHARTS 12 Our chart gallery – a community effort Interactive charts – new design • New look and feel – Color palette 14 Interactive charts – new design • New look and feel – Color palette – Chart layout 15 Interactive charts – new design • New look and feel – Color palette – Chart layout • New chart combinations 16 Demo site: BackPaki Interactive Charts: configure options But I want it in brown {'colors’:[0xFFFFFF,0xAA6622]} Buddies - map example 19 Hooking it up to your data… • Step 1: paste code snippet from chart playground • Step 2: change your data source: <html> <head> <script type="text/javascript" src="http://www.google.com/jsapi"></script> <script type="text/javascript"> google.load('visualization', '1', {packages: ['map']}); google.setOnLoadCallback(drawVisualization); function drawVisualization() { var query = new google.visualization.Query( 'http://spreadsheets.google.com/tq?key=AbCd&range=B1:D11'); query.send(handleQueryResponse); } function handleQueryResponse(response) { var data = response.getDataTable(); var container = document.getElementById('chart'); chart = new google.visualization.Map(container); chart.draw(data, null); } </script> </head> <body> <div id="chart" style="height: 400px; width: 400px;"></div></body> </html> 20 Interactive Charts demo site PART 3: “UNDER THE HOOD” 23 Interactive Charts demo site Events example – zoom in GeoMap function snippet () { this.geomap = new google.visualization.GeoMap( document.getElementById('mapdiv')); google.visualization.events.addListener(this.geomap, 'regionClick', goog.bind(function(e) { this.stack.push(e.region); this.draw(); }, this)); google.visualization.events.addListener(this.geomap, 'zoomOut', goog.bind(function(e) { this.stack.pop(); this.draw(); }, this)); } Implementing your own data source Browser Remote Data Data Sources Query Javascript Google Spreadsheets Google Data Table Charts Remote/local Protocol Response My Site 26 Implementing your own data source Browser Remote Data Data Sources Query Javascript Google Spreadsheets Google Data Table Charts Java library SQL Remote/local Protocol Response •ACL management CSV •query language By Google By My Site •built-in capabilities Python 27 Implementing your own data source Browser Remote Data Data Sources Query Javascript Google Spreadsheets Google Data Table Charts Java library SQL Remote/local Protocol Response •ACL management CSV •query language By Google By My Site •built-in capabilities Python select dept, year where revenues>20000 order by revenues desc 28 Implementing your own data source Browser Remote Data Data Sources Query Javascript Google Spreadsheets Google Data Table Charts Java library SQL Remote/local Protocol Response •ACL management CSV •query language By Google By My Site •built-in capabilities Python Custom database PHP By users By Ruby on Rails Custom 29 Hooking up your visualization… gviz_word_cumulus.WordCumulus.prototype.draw = function(data, options) { var attributes = { … }; var flashvars = { … }; var tags_xml = "<tags>"; for (var row = 0; row < data.getNumberOfRows(); row++) { var label = data.getFormattedValue(row, 0); var uri = data.getFormattedValue(row, 1); Convert the data var font_size = data.getFormattedValue(row, 2); table to XML var tag = "<a href='" + uri + "' target='_blank' style='font-size:" + String(font_size) + "pt;'>" + label + "</a>"; tags_xml = tags_xml + tag; } tags_xml = tags_xml + "</tags>"; flashvars["tagcloud"] = tags_xml; swfobject.embedSWF( Embedding "http://word-cumulus-goog-vis.googlecode.com/svn/trunk/tagcloud.swf", this.container_.id, options.width, options.height, '10', '', flashvars, attributes); the SWF }; 30 Interactive Charts demo site PART 4: SERVER SIDE RENDERING & CLIENT SIDE INTERACTIVITY 32 Side by side comparison Image charts Interactive charts • Static image • Interactive experience • URL access • Data remains on client • <1s • Basic JavaScript • Data manipulation functions: sort, group,… 33 Google Confidential Server side rendering and client side interactivity 1. Maps (up to a metro level) Server side rendering and client side interactivity 1. Maps (up to a metro level) 2. Interactive GraphViz Google Chart Tools 1. Rich gallery 2. Free of charge 3. Highly customizable 4. Interactive playground 5. Active developer group 6. Live data from many sources 7. Easy to adopt and simple to use 8. Detailed documentation and examples Questions? http://bit.ly/99tmxi 37.
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